Answers

Subtract 35/20 from 63/84

1^st number: 63/84, 2^nd number: 1 15/20

63/84 - 35/20 is -1/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   63/84 = 63 × 5/84 × 5 = 315/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   35/20 = 35 × 21/20 × 21 = 735/420
4. Subtract the two like fractions:
   315/420 - 735/420 = 315 - 735/420 = -420/420
5. After reducing the fraction, the answer is -1/1

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